Merge "Add a hidden API to detect ravenwood environment" into main am: 366569ad09

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3086545

Change-Id: I67959f51ac5a91958b7b81699883a7342be86493
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>